NDLI: Formation of Au Colloidal Crystals for Optical Sensing by DEP-Based Nano-Assembly

Content Provider	IEEE Xplore Digital Library
Author	Gong Wai Leung Fong Ting Lau Siu Ling Leung Li, W.J.
Copyright Year	2007
Description	Author affiliation: Centre for Micro & Nano Syst., Chinese Univ. of Hong Kong, Kowloon (Gong Wai Leung; Fong Ting Lau; Siu Ling Leung; Li, W.J.)
Abstract	We report the observation of photoconductivity in gold colloidal crystal formed based on a dielectrophoresis (DEP) plus self-assembly technique. By using dielectrophoresis and capillary force, we have successfully confined the gold colloidal crystal formation between two electrodes and characterized the electronic properties of the crystal. We have found that the resistance of these crystals (in the MOmega range) has a linear relationship with the intensity of light and hence could serve as optical sensors. We envision that the process developed could be used to potentially fabricate extremely low-cost photo-detector efficiently.
Starting Page	922
Ending Page	926
File Size	5629255
Page Count	5
File Format	PDF
ISBN	1424406102
DOI	10.1109/NEMS.2007.352169
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-16
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gold Colloidal crystals Optical sensors Electrodes Photonic crystals Dielectrophoresis Optoelectronic and photonic sensors Photoconductivity Self-assembly Immune system Nano Sensors Colloid Crystal Self Assembly Gold nanoparticles
Content Type	Text
Resource Type	Article

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